oj.uz

Submission #373065

# Submission time Handle Problem Language Result Execution time Memory
373065 2021-03-03T08:42:48 Z Atill83 Lozinke (COCI17_lozinke) C++14
100 / 100
 150 ms 18228 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
#define int long long
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 100000000861;
const int MAXN = (int) 3e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
string s[MAXN];
int pw[MAXN];
int hsh[MAXN];


int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    cin>>n;
    for(int i = 0; i < n; i++){
        cin>>s[i];
    }
    
    ll ans = 0;

    unordered_map<int, int> mp;

    const int base = 37;

    for(int i = 0; i < n; i++){
        vector<int> vc;
        for(int x = 0; x < s[i].length(); x++){
            int bas = 1;
            int hash = 0;
            for(int y = x; y < s[i].length(); y++){
                hash = (hash + 1LL * bas * (s[i][y] - 'a' + 1) % mod) % mod;
                vc.push_back(hash);
                bas = 1LL * bas * base % mod;
            }
            if(x == 0)
                hsh[i] = hash;
        }
        sort(vc.begin(), vc.end());
        vc.resize(unique(vc.begin(), vc.end()) - vc.begin());
        for(auto u: vc)
            mp[u]++;
    }

    for(int i = 0; i < n; i++){
        ans += mp[hsh[i]] - 1;
    }
    
    cout<<ans<<endl;


    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

Compilation message

lozinke.cpp: In function 'int32_t main()':
lozinke.cpp:43:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for(int x = 0; x < s[i].length(); x++){
      |                        ~~^~~~~~~~~~~~~~~
lozinke.cpp:46:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             for(int y = x; y < s[i].length(); y++){
      |                            ~~^~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 9 ms 9964 KB Output is correct
6 Correct 10 ms 9964 KB Output is correct
7 Correct 12 ms 10368 KB Output is correct
8 Correct 15 ms 10732 KB Output is correct
9 Correct 24 ms 10732 KB Output is correct
10 Correct 47 ms 13584 KB Output is correct
11 Correct 38 ms 11768 KB Output is correct
12 Correct 122 ms 18228 KB Output is correct
13 Correct 69 ms 10860 KB Output is correct
14 Correct 89 ms 17588 KB Output is correct
15 Correct 150 ms 18100 KB Output is correct
16 Correct 63 ms 9964 KB Output is correct
17 Correct 39 ms 9836 KB Output is correct
18 Correct 30 ms 9964 KB Output is correct
19 Correct 74 ms 13968 KB Output is correct
20 Correct 37 ms 9964 KB Output is correct